Wireworking apparatus



Oct. 7 1924.l 1,510,525v

. l .1. PRUTscHER wIREwoRKING APPARATUS original Filed Nov. 15. i921 's sheets-snee: 1

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J. PRUTSCHER WIREVWORKING APPARATUS Oct. 7 1924.

Original Filed Nov. 151

1921 Y 3 Sheets- Sheet` 5f tlo': mail.

Patented ct. 7, 1924.

lUNITED JOHN PRUTSCHER, 013 CHICAGO, ILLINOIS.

WIREWORKING- APPARATUS.

Application filed November 15, 1921. Serial No. 515,293. Renewed February 16, 1924.

To a-ZZ whom it may concern.'

Be it known that I, JoHNPRUTscHnR, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in lNireworking Apparatus, of which the following is a specification.

This invention which is the subject matter of the present application for patent has been designed for bending wire in a manner to produce an open-work fabric of ornamental design, suitable for use in connection with flower baskets andv other structures.

The invention has for its object; to provide a wire-bending machine or apparatus embodying certain novel and improved features of construction and vmodes of operation to be described in detail hereinafter, and in order that the same may be better understood, reference is had tothe accompanying drawings, forming a part of this specification.

In the drawings:

' Figure 1 is a plan view of the machine; Fig. 2 is an end view thereof; Fig. 3 is a cross-section on the line 3-3 of Fig. 1; Fig. 4 vis a front elevation, and Fig. 5 is a longitudinal section on the line 5-5 of Fig. 1. l

The invention contemplates the employment of a series of formers so shaped and arranged that when the wire, shown at W in Fig. 1, is bent around the same, there is produced an open-work fabric of ornamental design. Several rows of formers are employed as shown at 10, 11, 12, 13, 14 and 15, respectively, in Fig. 1, the rows being parallel and extending in the direction of the length of the machine. The formers 10 are secured by suitable fasteners 10aL to the top of a longitudinal base plate 10b, the formers 11 are secured by fasteners 11L to a base plate 11b. Formers 12 are secured by fasteners 12L to a base'plate 12b. Formers 13 are secured by Jfasteners 13a to a base plate 13". Form-ers 14 are upstanding pins carried by a longitudinal base plate 14a and passing loosely through a stripper plate 14b positioned above the latter. The formers 15 are secured by fasteners 15,a to a base plate 15b. The plates 10", 11b, and 12b are stationary and so supported by the ends 16 of the supporting frame o-f the machine. The plates 13b, 14a and 15b are supported by the supporting frame ends for a vertical movement. The supporting frame includes shaft 19 Vis fulcrumed an angle lever 23 having one of -its arms connected to the link, as shown at 24, the arrangement being such that the bar 20 is moved in the direction off'its l'engthvwhen the angle lever is operated. The'bottom edge of the bar 20 has-a notch 25, one end of which is inclined, as shown at 26. This notch, as shown in Fig. 5, is adapted to seatV overa raised portion at the top of a post 27 rising from the base 17 andlcovered with a wear plate having ank incline 28 on which the incline 26 seats. The forward end'of link 22 also has a notchv 29 provided with an incline to seat on an inclined portion 30 of a plate carried by the a'djacentend wall 16. The inclines are so located that a rear ward movement of the link 22 and the bar 20 also causes said parts to rise asshown by dotted lines in Fig. 5, whereas a movement in the opposite direction causes the same to lower to the position shown in full lines in Fig. 5, this being the normal position of the link andthe bar. y

Beneath the base plate 15b is located a series of cams 31 for elevating the same. Any suit-able number of cams, according to the length of the vplate,`will be provided; Each cam 'is mounted on-a stationary transverse shaft 32. The entire set of cams is joined for simultaneous operation by a connecting bar 33. On shaft V19 is fulcrumed an angle lever 34 connected by a link 35 to the bar 32. Fig. 4 shows the cams 31 in position for holding the plate 15b elevated,

and upon swinging the angle-lever 34 in theI proper direction, the cams aretilted awayv from the'bottomv of saidplate, as shown dotted in Fig. 4, whereupon the `plate is loweredbymeans of springs 'connected to the bottom thereof and anchored to the base 17. One of these springs is shown at 36 in Fig. 4.

' A raising and lowering means for the plates 13b and 14a, in all respectssimilar to` the one just described, is also pro-vided.

One of the lift-ing cams of plate 13b is shown Iat 37 and its operating lever at 38, and one vof the lifting cams of plate 14m is shown at 39 and its operating lever at 40. The cams 37 and 39 are fulcrumed on shaft 32, and the levers 38 and 40 are fulcrumed on shaft 19.

'When the machine is adjusted for operation, the several rows of formers are all ositioned at the same level so that the wire may be bent around the same. At the completion of the bending operation the work is removed from the machine, which is done in the following manner:

The hand-lever 34 is operated to lower the formers 15 around which the wire is looped. However the work does not drop it being held up by a longitudinal edge strip 41 extending along the front of the machine. The loops formed in the wire by the formers 15 are now closed up by twisting the wire together 'adjacent to the pins 14 as shown at 'w in Fig. 1. The hand levers and 38 are now operated to lower the pins 14 and the. formers 13. The work now remains on the formers 10, 11 and 12, and upon operating the hand lever 21 it is pushed upwardly off the same.

I claim:

1. In a wire-bending machine, a plurality of formers arranged in rows, certain of said rows being spaced, and work elevating means in the space between said rows for stripping the work off the formers.

2. In a wire-bending machine, a plurality of formers arranged in rows, certain of said rows being spaced, work elevating bars in the space between said rows for stripping the work off the formers, said bars having bottom inelines, supports for the bars having inclines on which the bar inclines seat, and means for moving the bars in the direction of their length.

3. In a wire-bending machine, a plurality of formers arranged in rows, base plates carrying the formers, certain of said base plates being` vertically movable, mea-ns for holding the last-mentioned plates elevated, and means for lowering said plates to remove the formers thereof from the work.

4. In awire-bending machine, a plurality of formers arranged in rows, base plates carrying the formers, certain of said. base plates being vertically movable, cams engageable with the bottom of thei last-mentioned plates for holding the same elevated, means for operating the cams Ito permit saidplates to lower to remove the formers thereof from the work, and means for lowering said plates when the cams are so operated.

5. In a wire-bending machine, a plurality of formers arranged in rows, b-ase plates carryiong` the formers, cert-ain of said base plates being spaced and others being vertically movable, means for holding the lastmentioned plates elevated, means for lowering said plates to remove the formers the-reof from the work, and work elevating means in the space between the spaced bars for stripping the work off the formers of said bars.

In testimony whereof I affix my signature.

JOHN PRUTSCHER. 

